Core business activities
Protecting Our Water, Sustaining Our Future
The Ekurhuleni Water Care Company (ERWAT) provides world-class wastewater conveyance and treatment services that protect the environment and support socio-economic growth. Through its network of advanced treatment works and conveyance infrastructure, ERWAT ensures that industrial and domestic wastewater is safely collected, treated, and released in compliance with national environmental standards.
Our commitment to excellence in water care is reflected in every stage of our operations — from the design and maintenance of conveyance systems to the continuous optimisation of treatment processes.
Our Process at a Glance
Wastewater from homes and industries flows through ERWAT’s pipeline network to our treatment plants, where it undergoes six key stages:
1. Collection →
2. Screening →
3. Sedimentation →
4. Biological Treatment →
5. Filtration & Disinfection →
6. Reuse or Safe Discharge.
Each step ensures cleaner water, resource recovery, and environmental protection.



